Its a starcraft cross over about the ponies making contact with humans and protoss. Except by the time the ponies get to them, the two races are long extinct. But they are still finding all sorts of artifacts left over from their civilization, ranging from extremely destructive weapons, to simple things like books and movies, all which had a huge impact in destabilizing pony culture.

Welcome, fellow travelers! Whether you come via slipspace or warp drive, mass relay, stargate, or simply on a generation ship at sublight speed, all are welcome. You might not know the language, and some things might freak you out, but remember that friendship is the strongest force in the universe.